Question 540362
{{{y = 4(x + 3)2 + 4}}}
Almost all the work is done for you. The way the equation is written, you can clearly see that for {{{x=-3}}} the fist term is zero and {{{y=4}}}
For any other value of x, the first term is positive and y>4.
The point (-3, 4) is the vertex and minimum of that parabola.